I've never had a sexual experience on shrooms, but I imagine it would be a ride. I tried to masturbate one time when I was on shrooms, but it didn't quite work, haha. I remember starting, but then something caught my mind. When I came back from my mental tangent, I realize that I was just sitting there with myself still in my hand... but limp now. haha. I don't even know how much time passed.
Yes, I think you're right. The partner would def need to be shrooming as well. Otherwise the girl (assuming "you" are a guy), would be a little suprised when you decided that the pattern on your comforter was more interesting than sex.
